Perrin's using a Hydra on their GT30R 08 WRX.
http://www.perrinperformance.com/pages/show/57
http://www.perrinperformance.com/pages/show/56
These two articles make Baby Jesus cry. Did Jeff write these? Ugh!
I feel so bad for that car considering the awful paint job and stock fuel pump, not to mention the Dynocrap Dyno they're using.
Still, there's a couple nuggets of info embedded in them. Apparently the front sway has the previous year's fitment.